This study has been limited to those seventeen significant years from the outbreak of World War I to the passing of the Statute of Westminster, for during those years British colonial policy changed radically. An era of the domination and supremacy of the imperial parliament disappeared to be replaced with a policy of equality and partnership. This change in British colonial policy was the result of many significant events. The present study will show how those events and London's responses to them helped to bring about the consummation of the long-sought nationhood of the colonies. The results of the study have been presented chronologically. During World War I (treated in Chapter II),' the colonies supported London with troops, skilled workers, contributions and foods of all kinds. The loyalty and sacrifices of the dominions aroused the interest of the mother country and eventually led to a change in the relationship between London and the colonies. London demonstrated her new attitudes of sympathy, co-operation, and understanding in a number of ways.